For example; An employer may use your Tax ID number to verify your identity to be eligible for a job. Or a bank may use your ...

"For example, having an EIN for your business ... can qualify if the applicant has a SSN or other taxpayer identification number. You'll answer questions on the IRS website about your business.

for example), or take a look at your most recent tax return. The IRS has a handy questionnaire to figure out if you need a Tax ID number, or if you can just use your Social Security number.

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Michael Rosenston is a fact-checker and researcher with expertise in business, finance ...

Learn about our editorial policies Form W-9 from the Internal Revenue Service (IRS), Taxpayer Identification Number and Certification, is used by businesses to collect tax information from third ...